CVE-2021-3252

Name: CVE-2021-3252
Creator: NVD / NIST
Published: 2021-02-23T15:15:15.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.59%

Last modified Jun 17, 2026

CVE-2021-3252 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. KACO New Energy XP100U Up to XP-JAVA 2.0 is affected by incorrect access control. Credentials will always be returned in plain-text from the local server during the KACO XP100U authentication process, regardless of whatever passwords have been provided, which leads to an information disclosure vulnerability.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.

Description

KACO New Energy XP100U Up to XP-JAVA 2.0 is affected by incorrect access control. Credentials will always be returned in plain-text from the local server during the KACO XP100U authentication process, regardless of whatever passwords have been provided, which leads to an information disclosure vulnerability.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

2.59%

83.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Kaco-Newenergy	Xp100u Firmware	xp-java_2.0

References

https://tiger-team-1337.blogspot.com/2021/01/kaco-xp100u-hmi-credential-leak.htmlExploit, Technical Description, Third Party Advisory
https://twitter.com/Kevin2600/status/1351189347501023238Third Party Advisory
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-15-224-01Third Party Advisory, US Government Resource
https://tiger-team-1337.blogspot.com/2021/01/kaco-xp100u-hmi-credential-leak.htmlExploit, Technical Description, Third Party Advisory
https://twitter.com/Kevin2600/status/1351189347501023238Third Party Advisory
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-15-224-01Third Party Advisory, US Government Resource

Timeline

Published: Feb 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3252?

How severe is CVE-2021-3252?

CVE-2021-3252 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3252?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3252?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST